偠t��Σ��ط��ƴ�ʩ

��r�g��2015-04-13 22:38 ��Դ��Փ�ľW(w��ng) ��: ��x��2361

1.�I(y��)Σ��

һ��r��,��偠t��70��80dB(A),��й��L(f��ng)�C(j��)��L(f��ng)�C(j��),��ˮ�Þ��Ҫ��Դ,��ķ�ֵ��ڵ��l��S��(qi��ng)��,��Ŀǰ,��F(xi��n)��偠t��͡��,��ʯ�X�ͻ��Ȼ��,��ú�⡢Һ��ʯ�͚��ȼ��,��˕r��a(ch��n)��Ҫ��偠t��ȼ��F��cȼ��^��a(ch��n)��,��β��L(f��ng)�C(j��),��ˮ��,��

2.偠t��ƴ�ʩ

a.��g(sh��)��ʩ��C(j��)е��ø��ʩ��]��g,��һ�㉦�w��ܶȞ�240kg/m3,��Ȟ�120mm��(n��i)�N��Ķ��Ϻ�Ȟ�50mm,��20kg/m3��صĳ��(x��)��,��1mm��o(h��)��ӣ�һ��p�Ӳ��,��2��T��r��ӏ�(f��)�ϲ��,��܇��ë�֡��zƤ��ܷ�,��

b.ᘌ�ȼú偠t�ĸ��ʩ��һ��ڸ��_3��,��2̎�M(j��n)�L(f��ng)1̎��L(f��ng)��԰��b��(��g�ӵ��Ƭ��ÈA��ֱ��ʽ),��ɽ��200dB(A)��,��

c.��,��͡�ʯ�X�ͻ��Ȼ��,��ú��,��Һ��ʯ�͚��ȼ�ϵ�偠t��ȼ��F��^��ԙC(j��)е��-�՚��≺��ȼ��^��п��ƽo��,��x�õ͉��,��t�Ł��

d.偠t��(n��i)�a(ch��n)��Դ��L(f��ng)�C(j��),��ˮ�õșC(j��)�M��M��õ��O(sh��)Ӌ��b��p��܇��h(hu��n)��Σ��,��

����D(zhu��n)�d��ǳ��ڂ��f��Ϣ֮Ŀ�ġ��Ё�Դ��(bi��o)ע�e�`��ַ��ĺϷ��(qu��n)��,��Ո��߳֙�(qu��n)��C��c��W(w��ng)(li��n)ϵ,��҂��r��h��,��x�x,��